Finding the Fourth Proportional to 11,459.16, 17,159.55 and 7,551.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,459.16 : 17,159.55 = 7,551.72 : x
2. Step 2: Convert to fraction form
   11,459.16/17,159.55 = 7,551.72/x
3. Step 3: Cross multiply
   11,459.16x = 17,159.55 × 7,551.72
4. Step 4: Simplify right side
   11,459.16x = 129,584,116.93
5. Step 5: Solve for x
   x = 129,584,116.93/11,459.16
6. Step 6: Final answer
   x = 11,308.34